log.py 文件源码

def appendDfToPickle(df, filePath):
    import os
    import pandas as pd
    if not os.path.isfile(filePath):
        df.to_pickle(filePath)
    else:
        tempDF=pd.read_pickle(filePath)
        tempDF=tempDF.append(df, ignore_index = True)
        tempDF.to_pickle(filePath)